Iteration loop Node

Overview

The Iteration Loop Node enables repetitive execution of a sequence of nodes over a collection of items. It creates an isolated execution context for each iteration, making it ideal for processing arrays of data, batch operations, or repetitive tasks.

Usage cost: 0 credit

Configuration

Settings

1. Iteration Control

   • Iterator*: Select array variable to iterate over

   • Maximum Iterations: Limit the number of iterations (0-10,000)

   • Output Collection: Select child node output to collect results

2. Context Variables Available in child nodes during iteration:

   • current_item: Current item being processed

   • index: Current iteration index (number)

Output Ports

• output (Any[]): Array of collected outputs from iterations

  • When Output Collection is specified

  • Maintains order of iterations

  • Preserves original data types

Best Practices

1. Iterator Selection

   • Verify array data structure

   • Consider data volume

2. Performance Management

   • Set appropriate iteration limits

   • Consider batch processing

   • Optimize child node operations

3. Output Collection

   • Choose relevant outputs

   • Plan data aggregation

   • Consider memory usage

Common Issues

• Memory overflow from large collections

• Iteration limit exceeded

• Missing iterator variable